1 files changed, 6 insertions, 10 deletions
diff --git a/Help/guide/tutorial/Step6/MathFunctions/mysqrt.cxx b/Help/guide/tutorial/Step6/MathFunctions/mysqrt.cxx
index 7eecd26..ba0ac64 100644
--- a/Help/guide/tutorial/Step6/MathFunctions/mysqrt.cxx
+++ b/Help/guide/tutorial/Step6/MathFunctions/mysqrt.cxx
@@ -1,8 +1,9 @@
-#include <cmath>
-#include <iostream>
+#include "mysqrt.h"
 
-#include "MathFunctions.h"
+#include <iostream>
 
+namespace mathfunctions {
+namespace detail {
 // a hack square root calculation using simple operations
 double mysqrt(double x)
 {
@@ -10,12 +11,6 @@ double mysqrt(double x)
     return 0;
   }
 
-  // if we have both log and exp then use them
-#if defined(HAVE_LOG) && defined(HAVE_EXP)
-  double result = std::exp(std::log(x) * 0.5);
-  std::cout << "Computing sqrt of " << x << " to be " << result
-            << " using log and exp" << std::endl;
-#else
   double result = x;
 
   // do ten iterations
@@ -27,6 +22,7 @@ double mysqrt(double x)
     result = result + 0.5 * delta / result;
     std::cout << "Computing sqrt of " << x << " to be " << result << std::endl;
   }
-#endif
   return result;
 }
+}
+}